From: Stefan Roese <stefan.roese@gmail.com>
To: Roland Stigge <stigge@antcom.de>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai] GPIO in Xenomai
Date: Wed, 28 Nov 2012 09:48:08 +0100 [thread overview]
Message-ID: <50B5CFC8.1060705@gmail.com> (raw)
In-Reply-To: <50B5CED9.2000600@antcom.de>
On 11/28/2012 09:44 AM, Roland Stigge wrote:
> On 11/28/2012 08:12 AM, Stefan Roese wrote:
>> I'm looking for a way to use the SoC GPIO's (MPC5200) in an RT thread.
>> Accessing them via the sysfs (the Linux userspace way) is not an option
>> since we need to access the GPIO's at a quite high frequency.
>>
>> How could the Linux gpiolib infrastructure best be exposed to RT
>> threads? Has this been discussed before? Any ideas about the "best"
>> approach here?
>
> Have you seen my block gpio patches (v7) that I posted recently to the
> kernel list? It now contains a dev interface - much faster than sysfs,
> and can operate on several GPIOs at once.
>
> I can re-post here if it helps.
No, I haven't seen those patches. Could you please post a link to those
patches (re-posting here is not necessary).
Thanks,
Stefan
next prev parent reply other threads:[~2012-11-28 8:48 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-11-28 7:12 [Xenomai] GPIO in Xenomai Stefan Roese
2012-11-28 8:44 ` Roland Stigge
2012-11-28 8:48 ` Stefan Roese [this message]
2012-11-28 9:04 ` Roland Stigge
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